公开(公告)号：US4942424A

公开(公告)日：1990-07-17

申请号：US204486

申请日：1988-06-09

申请人： Takaaki Terashita ,  Sethuo Okada

发明人： Takaaki Terashita ,  Sethuo Okada

IPC分类号： G03B27/73 ,  G03B27/80

CPC分类号： G03B27/735

摘要： A color photographic printing method of printing a film on the basis of the printing condition of a reference film type, comprises comparing the film characteristic of the reference film type with the film characteristic of the type of a film to be printed and correcting the printing condition of the reference film type on the basis of the result of this comparison. Accordingly, the proper printing condition of each type of film to be printed can be obtained from the printing condition of a single reference film type. A color photographic printing apparatus has a light source section for separating white light into red light, green light and blue light by a combination of a color glass and color separation filters of red, green and blue each provided with a dielectric multilayer film to project the light of each color onto a color film and a light measuring device for measuring red light, green light and blue light transmitted through the color film so that the amount of exposure is controlled on the basis of a predetermined reference printing condition and a measurement value provided by the light measuring device. The color separation filters are each constituted by the dielectric multilayer film and a filter member disposed in close contact with the coating of the dielectric multilayer film, it is possible to prevent variations in the spectral characteristic due to temperature changes.

摘要翻译： 基于参考膜类型的打印条件来印刷胶片的彩色照相印刷方法包括将参考胶片类型的胶片特性与要印刷的胶片类型的胶片特性进行比较并校正打印条件 基于该比较的结果的参考膜类型。 因此，可以从单个参考膜类型的打印条件获得要打印的每种类型的膜的适当打印条件。 彩色照相印相装置具有通过彩色玻璃和红色，绿色和蓝色的分色滤色器的组合将白光分离为红光，绿光和蓝光的光源部分，每个设置有电介质多层膜， 将各颜色的光照射到彩色胶片上，以及光测量装置，用于测量透过彩色胶片的红光，绿光和蓝光，以便根据预定的基准打印条件和提供的测量值来控制曝光量 由光测量装置。 分色滤光片各自由电介质多层膜和与电介质多层膜的涂层紧密接触而设置的滤色片构成，可以防止由于温度变化引起的光谱特性的变化。